Sea Lion Aquatic Park Party
Aquatic Parties for Ages 1-16

Plan Your Party at Sea Lion Aquatic Park!

Sea Lion Aquatic Park is the perfect venue for your birthday party or other special event. For more information, or to book a party at Sea Lion Aquatic Park, fill out our online request form below or contact Taylor Witter at or 630-353-4388.


Monday - Friday
Saturday & Sunday
12:00-2:00pm 1:00-3:00pm
Don’t see a time that works?
If you don't see a time slot that will work with your schedule, consider our private facility rentals.

Party Rates

Base Fees
2023 Season Passholder
10 guests (including children & adults) $180 $195 $210
Per additional person (child or adult) $9 $12 $15

What's included with each party:

All day admission for birthday child and guests
Birthday child & 1 chaperone (Age 16+) receives free admission
2-hour reserved outdoor party area with tablecloths provided
2 large pizzas and soda for up to 10 guests
Ability to bring cake or cupcakes into the facility free of charge

Available Party Add-ons

Add-on Item
Additional Cheese Pizza $15.50 / pizza
Additional Sausage or Pepperoni Pizza $18 / pizza
20-minute mascot visit from Sammy the Sea Lion $20


Booking & Payment Information:
  • Dates and times are available on a first-come, first-served basis and will not be reserved until a $50 non-refundable deposit is received. The deposit is due at time of booking to reserve your party slot.
  • Rental agreement and final head count are due 7 days prior to event. If there are less than 10 guests, customer will pay the base fee ($180 SLAP Member, $195 Resident, $210 Nonresident).
  • Final balance is due 7 days prior to your party. Failure to pay full balance will result in cancellation of party.
  • Any changes must occur 7 days or more prior to party.
  • To book a party you will need to have an online park district account or create a new account. If you don't currently have an account, you must verify your residency by providing a valid state ID AND tax, lease, or utility bill at the time of sale to receive the resident rate. No exceptions.
Cancellation & Refund Policy:

If cancelled 14 days or more prior to your party, you will receive a refund of monies paid less the $50 deposit. No refunds will be honored less than 14 days prior to party.

Chaperone Policy:

Children must be supervised at all times with a specified adult/child ratio based on the age of the children (see below). The supervising adults (age 16+) must be in swimwear and must pay admission or be included as a paid guest in the party package (excludes 1 free chaperone).

Pool Supervision Ratios:
  • Age 1 & Under: 1 Adult to 1 Child
  • Age 1-2: 1 Adult to 3 Children
  • Age 3-9: 1 Adult to 5 Children
  • Age 10-14: 1 Adult to 10 Children


Please complete the online party request form below. This form is only a request, not a guarantee. You will be contacted to confirm booking of your party within 2 business days. If you have any questions or have not heard from us within 2 business days, please contact our Recreation Facilities Manager, Taylor Witter at or 630-353-4388.